Home / 37,915.80-56,857.19-20,142.57

Finding the Fourth Proportional to 37,915.80, 56,857.19 and 20,142.57

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Solution

The fourth proportional to 37,915.80, 56,857.19 and 20,142.57 is: 30,205.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,915.80 : 56,857.19 = 20,142.57 : x
  2. Step 2: Convert to fraction form
    37,915.80/56,857.19 = 20,142.57/x
  3. Step 3: Cross multiply
    37,915.80x = 56,857.19 × 20,142.57
  4. Step 4: Simplify right side
    37,915.80x = 1,145,250,155.38
  5. Step 5: Solve for x
    x = 1,145,250,155.38/37,915.80
  6. Step 6: Final answer
    x = 30,205.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.